在JSP中点击href发送帖子请求 [英] Send post request on click of href in JSP

问题描述

如果我们写下如下内容：

 < a href =MyServlet>链接< / a> 
  

它会调用该servlet的GET方法。我可以通过点击 a 标签发送发布请求吗？是否有可能？

我知道如何用Javascript做到这一点，但想知道如果没有JavaScript可以完成。

解决方案

解决方案是将锚定在一个表单中，其中包含post方法和您希望执行的操作。在锚上放一个javascript来提交表单

 < form name =submitFormmethod =POSTaction = / servlet的/ ServletName> 
< input type =hiddenname =param1value =param1Value> 
< A HREF =javascript：document.submitForm.submit（）>点击我< / A> 
< / form> 
  

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编辑

我想我应该提一下，这不是一个好主意。

链接带你到页面，这就是用户了解他们做的事情。打破用户的假设，并导致链接到POST，做一个不可撤销的事情，通常被认为是一个坏主意。

使用一个按钮，它的语义标签，然后你的用户知道点击这个做了一些事情。

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秒编辑

我真的需要强调，这根本不是一个好主意。。

这打破了互联网。

If we write something as follow:

<a href="MyServlet">Link</a>

It will call GET method of that servlet. Can I send post request on click of a tag? Is it possible?

I know how to do this with Javascript but want to know if this could be done without JavaScript.

解决方案

The solution is to surround the anchor in a form, which has the post method and the action you wish to execute. On the anchor put a javascript to submit the form

<form name="submitForm" method="POST" action="/servlet/ServletName">
    <input type="hidden" name="param1" value="param1Value">
    <A HREF="javascript:document.submitForm.submit()">Click Me</A>
</form>

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edit

I think I should mention that this isn't a good idea.

Links take you to pages, that's what users understand them to do. To break the users assumptions and cause a link to POST, to do an irrevocable thing, is generally considered a bad idea.

Use a button, label it semantically, then your user knows that clicking this does something.

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second edit

I really need to emphasise that this isn't a good idea at all.

This breaks the internet.

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